使用TCP将桌面截图压缩成JPEG流传输的桌面监视，但是运行一段时间后会发生错误。现在已发现错误是由于接收线程里的size 没有写保护 造成Opaint的ShowJPEG里初始化大小错误。在接收线程里给它加锁即可-Desktop screenshot using TCP streaming JPEG compressed into a desktop monitor, but the run time error will occur. Now find the error was due to